- Ring Sizer
Ring Sizes in the US
Women’s rings typically range from size 3 to 9. The most commonly purchased women’s ring sizes range from size 5 to 7. Size 6 is the most popular ring size.
Men’s rings typically range from size 8 to 14. The most commonly purchased men’s ring sizes range from size 8 to 10-½. Size 9 is the most popular ring size.
Ring size is not the same as finger size. A professional jeweler can determine proper ring size using a set of steel gauge-rings. These "ring sizers" come in narrow and wide widths. Fingers change over the course of the day due to diet or work affecting the results using gauge rings.
It has been recommended that fingers be measured at the end of the day, when they are at their largest diameters. Existing fitted rings can also be measured for increased accuracy. Other factors that can affect ring size include: the menstrual cycle, temperature, humidity, water-retention and exercise.
The best strategy for measurement is to have a local jeweler do a measurement for you. You can use one of the online or paper methods provided below but their accuracy is not the same as you would get from having a jeweler do it.
If you have a ring to use but don’t know the size, you can get a printable form to measure the ring size based on the existing ring here.